Screen projectors

There are a lot of us whose understanding of technology is very minimal. We know about some technological devices, but can rarely call ourselves technology buffs. So let's increase a little but of your technological knowledge and give you information about a new and important piece of equipment. One of the most useful technological creations today is the screen projectors. Screen projectors are used for so many purposes, to project movies, pictures and computerized data onto the projection screen. It is time to move on from the old slide or overhead projectors. They were bulky and not as good as the latest LCD screen projectors. But, what is the difference between all these kinds of projectors.

The latest LCD screen projectors are able to display sharp images on the projection screen for you to view. The movie theatres that display such excellent quality movie pictures use the latest LCD screen projectors to project the movies on screen. These projectors are a step ahead of the slide screen projectors in which small photographic slides had to be inserted by you. The slide screen projectors would then project the photographs on a screen or a white flat surface using bright light. If you have some young children's night lamps, that have cartoon characters painted on the shade. The light from the lamp projects the painting on the walls. These sorts of lamps have been popular since centuries and the slide screen projectors use a similar mechanism.

Now the overhead screen projectors were a common thing of every classroom. It is a bright light in a small square box, with a glass on one end. Any transparent object, like transparencies with text on them are placed on the projector and projected onto a flat surface like a projection screen using a mirror. Overhead screen projectors were commonly used by schools, colleges and universities for the purposes of displaying the lecture notes. But, now they are an old technology.

The latest in screen projectors are LCD screen projectors that use the latest technology. It uses a strong light lamp passing through a prism that divides the light into the three basic colors red, blue and green. The individual pixels in the panel open to let light pass and close to stop the light, depending on these the image is projected. All this happens within seconds and before we realize it, the screen projectors are doing their work and projecting the movie, images or computer data on a screen. These LCD projectors can be connected to your computer using a data cable, like the one you use to connect your modem to your monitor. Connecting the LCD projector to your CPU you can project the computer screen on any flat service for others to view. It is an excellent tool to use during training sessions or class presentations. The LCD projector can also be connected to the DVD player, but they will only display images, sound has to come from the surround sound speakers. A lot of the latest home cinema theatres consist of one of these LCD screen projectors, surround sound speakers and a big projection screen.

However, the LCD screen projectors are the most expensive screen projectors available. Also, if the LCD happens to have a few bad pixels, a spot will appear in every image that is displayed by the projector. This thing can not be fixed in the LCD projector and will not go away no matter what is being projected.

As you can see, there is a great variety of projectors available. There are some more projectors available as well, that are more technologically advanced than the LCD projectors. However, all similar projectors are typically called LCD projectors. They are a great facility and if you like to watch movie with excellent quality of picture and sound, then you should consider buying a home theatre system that will come with a projector. Then you can have a theatre for yourself and your family right at home. You can even invite friends or relatives to have a proper theatre evening with movies and pop-corn. You can be right at home and have the experience of watching the movie in a theatre.